Gboege taliafeeeo shackelfoed



(No Model.)

G. T. SHACKELPORD.

y LUBRI()A321151@` OUP.

Patented Nov.- 11, 1884.

Tige. su

Mw m'lill 6 lJvI/EJVTUR GEORGE TALIAFERROSHACKELFORD, OF DENVER,COLORADO.

LUBRICATlNe-CUP.

SPECIFICATION forming part onf-Letters Patent No. 307,992, datedNovember 11, 1884.

Application led September 6, 1884. (No model.)

To all whom it may concern.-

' Beit known that I, GEORGE TALIAEERRO SHACKELFOED, a citizen of theUnited States, residing at Denver, in the county of Arapahoe, State ofColorado, have invented certain new and useful Improvements inLubricating- Oups; and'I do hereby declare the following to be a full,clear, and eXact description ofthe invention, such as will enable othersskilled in the art to which it appertains to make and use it, referencebeing had to the accompanying drawings, which form part of thisspecifica tion.

My invention relates to improvements in lubricating-cups.

Heretofore inv lubricating-cups the piston that forces the lubricatingsubstance through the cup relies upon the elasticity ofthe grease orfatty substance used to feed the bearings automatically. I find this tobe objectionable from the fact that the grease is not snfciently elasticto cause it to flow any length of time, and necessitates the pistonbeing moved downward constantly.

The object of my invention is to provide a lubricatingcup of suchconstruction that the piston will be free to move any desired distance,and allowed to force the grease or fatty substance automatically bymeans of a spring, and further, the stem or rod that operates the pistoncan indicate the quantity of grease in the cup.

My invention consists, first, of a lubrieating-cup having thecombination of stem or:

rod with the piston so arranged as to indicate the quantity oflubricating substance in the cup.

My invention further consists of a lubricating-cup that feedsautomatically by means of a spring made to press against the piston andcause it to travel stated distances.

I am aware that prior to my invention lubricating-cups have been madeand patented. The patent of July 3, 1883, has a stem with thread andpiston, the stem being stationary, while the piston moves up and downalong the stein and forces the lubricating substance out of the cup asthe stem rotates; but there is no provision for any elasticity,consequently it cannot feed automatically; and, further, you cannot seethe quantity of grease inthe cup without removing the cover, which isinconvenient when used on crank-wheels of engines or any moving machine.`I use my stem as an indicator, and the spring on the top of pistonsupplies an automatic force to feed the grease. I prefer to make mypiston loose on the stem, so that it can move up or down at pleasure. Y

In the accompanying drawings, Figure 1 is an outside view showing therod or stem projecting outside ofthe cup, indicatingthe quan tity ofgrease therein. section. Fig. 3 is an enlarged view of piston with thespring.

T represents the thumb-piece for actuating the stem B. B is the stem,provided with a lock-nut, E, to prevent the rod from moving at pleasure.the end of stem or rod B. S is a screw fast-4 Fig. 2 is a vertical P isthe piston, loosely fitted to ened to the stem B, and prevents thepiston n P from sliding off the rod B. R is the spring contained in thecylinder or guide I. Iis the cylinder that guides the spring, and ismade of sufficient length to permit the piston to travel upward whenforced against the lubrieating substance below the piston. F is thecover, with inside thread fitted to the stem and fastened to the body ofcup A. A is the cylinder of cup. His the hole or exit for grease. C isthe threaded portion, which can be fitted to any portion of a bearing.

Having thus described my invention, vwhat I claim as new, and desire tosecure by Letters Patent, is-

1. In a lubricating-cup, the combination of a stem or rod, B, with theloosely-fitted piston, P, the spring R, and guide I, the parts` being soarranged as to indicate the quantity f of lubricating substance in thecup, substantially as shown and described.

2. In a lubrieatingoup, the combination of a stem or rod, B, lock-nut E,the piston P, loosely fitted to said stem, spring R, and guide I, vallsubstantially as shown, and for the purposes set forth. I

Intestiniony that I claim the foregoing I have hereunto set my handthis7th day of February, 1884.

GEORGE TALIAFERR() SHACKLFORD.

Witnesses:

JOEL W. SEACKELEORD, JAMES A. FLEMING.

